[PRECISION ELECTRONIC TIMER AND CUP QUANTIFICATION] – Precision Electronic Timer allows users to adjust grind time in 0.1-second increments and consistent dose every time. The cup number can be selected from 1 to 12 cups. [CUSTOMIZABLE GRIND] – 51 precise grind settings from the finest Espresso to the coarsest French Press Grind. [PREMIUM CONICAL BURR] – Durable 40-millimeter Stainless steel conical burrs designed to minimize grinding heat and protect the essential oils in the coffee bean, creating uniform grounds for optimal flavor extraction. [DESIGN FOR ESPRESSO] – Grind the coffee beans directly into portafilter by using portafilter cradle which is a real time saver. We provided 2 Portafilter cradle & 2 dosing rings. Portafilter cradle small 53 millimeter; Portafilter cradle large 58 millimeter; 53mm dosing ring; 58mm dosing ring. If your Portafilter doesn’t fit Cradle, directly grind coffee with Dosing Ring to avoid powder leak. [EASY TO CLEAN] – The coffee grounds residual cleaner is good for cleaning the residual coffee grounds. Please press the coffee grounds’ residual cleaner after each use. And the built-in brush, removable upper burr, hopper, and chamber for easy cleaning of the item.